Find-Sum-Of-Digits-And-Factorial-Of-Number

Menu-driven program to find Factorial and Sum of digits

C

Menu-driven C program to find Factorial and Sum of digits – C Programming Me Ham Menu Driven Program Ko Create Karne Wale Hai, Jo Ye Program Switch Case Se Banayenge Or Isme Ham Find Factorial Or Sum Of Digits Find Karenge |

Also Read – Quadratic Equations Program

C Program to find Factorial and Sum of digits

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Example 1:

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
int main()
{
	int choice;
	int i,n,fact = 1,sum=0,d;
	do
    {
     	printf("\n1. Factorial");
        printf("\n2. Sum of digits");
        printf("\n3. Exit");
        printf("\n\nYour Choice? : ");
        scanf("%d",&choice);
        switch(choice)
        {
          case 1:
                printf("Enter a number to calculate it's factorial\n");
       	        scanf("%d", &n);
	            for (i= 1; i <= n; i++)
                fact = fact * i;
                printf("Factorial of %d = %d\n", n, fact);
                break;
         case 2:
                printf("\nEnter a Number to find the sum of digits : ");
                scanf("%d",&n);
                sum=0;
                while(n>0)
                {
                   d=n%10;
                   sum=sum+d;
                   n=n/10;
                }
                printf("\nThe sum of digits of the number is %d ",sum);
                break;
        default:
               exit(0);
       }
   }
   while(1);
getch();
}

Output:

1. Factorial
2. Sum of Digits
3. Exit

Your Choice? : 1

Enter a number to calculate it's factorial
3

Factorial of 3 = 6

1. Factorial
2. Sum of Digits
3. Exit

Your Choice? : 2

Enter a Number to find the sum of digits : 4 5

The sum of digits of the number is 9

1. Factorial
2. Sum of Digits
3. Exit

Your Choice? :

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